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Argulus sp. (Crustacea: Branchiura) on cod, Gadus morhua from Finnmark, northern Norway

Published online by Cambridge University Press:  21 February 2005

T.A. Schram
Affiliation:
Department of Biology, University of Oslo, Norway
L. Iversen
Affiliation:
Alta and Loppa Fish Health Services, Alta, Norway
P.A. Heuch
Affiliation:
National Veterinary Institute, PO Box 8156 Dep., N-0033 Oslo, Norway
E. Sterud
Affiliation:
National Veterinary Institute, PO Box 8156 Dep., N-0033 Oslo, Norway

Abstract

Six specimens of an unknown Argulus species were found on a cod caught off the coast of Finnmark in northern Norway. All six were found to be sixth stage male larvae, ∼2·6 mm long and 1·6 mm wide. Argulus has not previously been recorded from cod and this is also the first record of a marine Argulus from Norwegian waters. The Argulus sp. from cod can be easily distinguished from other marine species found in northern European waters, and also from Norwegian freshwater species of Argulus. It is believed that it represents a new species, but a complete species description must await the finding of adult stages.

Type
Research Article
Copyright
2005 Marine Biological Association of the United Kingdom

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